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Male cartilaginous fishes (sharks and rays), as well as the males of some live-bearing ray finned fishes, have fins that have been modified to function as intromittent organs, reproductive appendages which allow internal fertilization. In ray finned fish they are called gonopodiums or andropodiums, and in cartilaginous fish they are called ...
In practice, fish anatomy and fish physiology complement each other, the former dealing with the structure of a fish, its organs or component parts and how they are put together, such as might be observed on the dissecting table or under the microscope, and the latter dealing with how those components function together in living fish.
Regalecus russelii is a member of the fish genus Regalecus and oarfish family Regalecidae. The genus currently includes only one other species of oarfish, Regalecus glesne. [2] [3] R. russelii is part of the order Lampriformes, which represents tube-eyes and ribbonfishes, and is part of the larger class of ray-finned fishes called ...
The external reproductive organs of male sharks, rays, and chimaeras. coalesced Grown together. compressed Flattened laterally. confluent Joined together. conical Cone-shaped, with a cylindrical base and a pointed tip. corselet A scaly covering behind the pectorals of some fishes. countershading Body colouration which is dark above and lighter ...
Fish physiology is the scientific study of how the component parts of fish function together in the living fish. [2] It can be contrasted with fish anatomy, which is the study of the form or morphology of fishes. In practice, fish anatomy and physiology complement each other, the former dealing with the structure of a fish, its organs or ...
Nuptial tubercles or breeding tubercles (also called pearl organs or nuptial efflorescence) are noticeable skin roughness or horny nodules that form on male fish during breeding. They are made of keratin, the same material as hair, hooves, and fingernails.
A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction. Sex organs constitute the primary sex characteristics of an organism. Sex organs are responsible for producing and transporting gametes , as well as facilitating fertilization and supporting the development and birth of offspring.
Many species of anemone are monoecious, meaning that each individual organism contains both the male and female reproductive organs of the species. The fish eating anemone on the other hand is dioecious, meaning that it has distinct male and female individual organisms. They reproduce sexually through the external fertilization of egg and sperm.
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